Circadian Rhythms

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One new concept that I have learned this week was the concept of biological and circadian rhythms. Biological rhythms are internal rhythms of biological activity that usually take place over a 24 hour period, but can take longer to complete. One example of a longer biological rhythm is a woman's menstrual cycle. Circadian rhythms are biological rhythms that only take place in a 24 hour period. One example of a circadian rhythm is our sleep-wake cycle. Another new concept that I learned are the various sleep problems and disorders. I was familiar with some disorders, such as sleep apnea and insomnia, but I learned about new disorders including REM sleep behavior disorder and narcolepsy. Rem sleep behavior disorder occurs when the muscle paralysis

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